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3.4.2 Injectors
Injectors are best cleaned with a wooden splinter or soft
fuse wire. Metal reamers may distort or increase
orifice size and their use should be avoided.
3.5 THERMOCOUPLES and
FLAME FAILURE DEVICE (FFD)
3.5.1 Open Top Flame Failure Device Magnet Unit
To remove and replace FFD magnet unit, the following procedures must be followed.
Remove hob components as detailed in Section 3.2.2.
Undo FFD thermocouple at rear of tap, undo FFD
section at tap rear and withdraw.
Replace in reverse order.
3.5.2 Open Top Thermocouple
Remove hob as detailed in Section 3.2.2.
Remove nut that secures thermocouple to burner support bracket and pull thermocouple through support
bracket from underside.
Undo thermocouple connection at FFD section of gas tap and carefully remove thermocouple.
Replace in reverse order, taking care to position tip correctly in relation to burner ports. Thermocouple
tip should be 35mm above support bracket. Ensure thermocouple does not touch any part of burner
when fully re-assembled.
3.5.3 Oven Flame Failure Device
The oven FFD is built into the electronic ignition system
controller, it is not replaceable. Full replacement
of
controller is necessary.
3.6 OVEN IGNITERS and ELECTRODES
The oven ignition system is electronically controlled. Access to ignition system is via rear electronics box.
The cover is retained by 3 fixings.
Electrodes are accessed as detailed in Section 3.1.4.
3.7 THERMOSTATS
3.7.1 Oven Thermostat
Remove control knobs and facia panel as detailed in Section 3.2.1.
Remove thermostat from facia panel.
From inside oven, release clips that secure thermostat capillary to oven side wall. Undo fixings that
secure thermostat to manifold.
Remove thermostat by carefully feeding capillary and phial through crown plate.
Replace all parts in reverse order.
3.7.2 Safety Thermostat
Open terminal box at rear.
Remove fan motor cover, located at rear of unit. Remove wires 13 and 14 from safety thermostat.
From inside oven, remove phial guard and clips located at rear left of oven chamber.
Feed capillary and phial through back panel.
Undo nut that secures safety thermostat and remove thermostat from terminal box.
Replace all parts in reverse order.
3.7.3 Thermostat Calibration
The thermostat should not be calibrated. If temperature is out with specified tolerances, replace
thermostat and return faulty thermostat to Falcon Quality Department.
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